3.1.63 \(\int \frac {1}{(a+b \tanh (c+d x))^3} \, dx\) [63]

Optimal. Leaf size=129 \[ \frac {a \left (a^2+3 b^2\right ) x}{\left (a^2-b^2\right )^3}-\frac {b \left (3 a^2+b^2\right ) \log (a \cosh (c+d x)+b \sinh (c+d x))}{\left (a^2-b^2\right )^3 d}+\frac {b}{2 \left (a^2-b^2\right ) d (a+b \tanh (c+d x))^2}+\frac {2 a b}{\left (a^2-b^2\right )^2 d (a+b \tanh (c+d x))} \]

[Out]

a*(a^2+3*b^2)*x/(a^2-b^2)^3-b*(3*a^2+b^2)*ln(a*cosh(d*x+c)+b*sinh(d*x+c))/(a^2-b^2)^3/d+1/2*b/(a^2-b^2)/d/(a+b
*tanh(d*x+c))^2+2*a*b/(a^2-b^2)^2/d/(a+b*tanh(d*x+c))

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Rubi [A]
time = 0.13, antiderivative size = 129, normalized size of antiderivative = 1.00, number of steps used = 4, number of rules used = 4, integrand size = 12, \(\frac {\text {number of rules}}{\text {integrand size}}\) = 0.333, Rules used = {3564, 3610, 3612, 3611} \begin {gather*} \frac {2 a b}{d \left (a^2-b^2\right )^2 (a+b \tanh (c+d x))}+\frac {b}{2 d \left (a^2-b^2\right ) (a+b \tanh (c+d x))^2}-\frac {b \left (3 a^2+b^2\right ) \log (a \cosh (c+d x)+b \sinh (c+d x))}{d \left (a^2-b^2\right )^3}+\frac {a x \left (a^2+3 b^2\right )}{\left (a^2-b^2\right )^3} \end {gather*}

Antiderivative was successfully verified.

[In]

Int[(a + b*Tanh[c + d*x])^(-3),x]

[Out]

(a*(a^2 + 3*b^2)*x)/(a^2 - b^2)^3 - (b*(3*a^2 + b^2)*Log[a*Cosh[c + d*x] + b*Sinh[c + d*x]])/((a^2 - b^2)^3*d)
+ b/(2*(a^2 - b^2)*d*(a + b*Tanh[c + d*x])^2) + (2*a*b)/((a^2 - b^2)^2*d*(a + b*Tanh[c + d*x]))

Rule 3564

Int[((a_) + (b_.)*tan[(c_.) + (d_.)*(x_)])^(n_), x_Symbol] :> Simp[b*((a + b*Tan[c + d*x])^(n + 1)/(d*(n + 1)*
(a^2 + b^2))), x] + Dist[1/(a^2 + b^2), Int[(a - b*Tan[c + d*x])*(a + b*Tan[c + d*x])^(n + 1), x], x] /; FreeQ
[{a, b, c, d}, x] && NeQ[a^2 + b^2, 0] && LtQ[n, -1]

Rule 3610

Int[((a_.) + (b_.)*tan[(e_.) + (f_.)*(x_)])^(m_)*((c_.) + (d_.)*tan[(e_.) + (f_.)*(x_)]), x_Symbol] :> Simp[(b
*c - a*d)*((a + b*Tan[e + f*x])^(m + 1)/(f*(m + 1)*(a^2 + b^2))), x] + Dist[1/(a^2 + b^2), Int[(a + b*Tan[e +
f*x])^(m + 1)*Simp[a*c + b*d - (b*c - a*d)*Tan[e + f*x], x], x], x] /; FreeQ[{a, b, c, d, e, f}, x] && NeQ[b*c
- a*d, 0] && NeQ[a^2 + b^2, 0] && LtQ[m, -1]

Rule 3611

Int[((c_) + (d_.)*tan[(e_.) + (f_.)*(x_)])/((a_) + (b_.)*tan[(e_.) + (f_.)*(x_)]), x_Symbol] :> Simp[(c/(b*f))
*Log[RemoveContent[a*Cos[e + f*x] + b*Sin[e + f*x], x]], x] /; FreeQ[{a, b, c, d, e, f}, x] && NeQ[b*c - a*d,
0] && NeQ[a^2 + b^2, 0] && EqQ[a*c + b*d, 0]

Rule 3612

Int[((c_.) + (d_.)*tan[(e_.) + (f_.)*(x_)])/((a_.) + (b_.)*tan[(e_.) + (f_.)*(x_)]), x_Symbol] :> Simp[(a*c +
b*d)*(x/(a^2 + b^2)), x] + Dist[(b*c - a*d)/(a^2 + b^2), Int[(b - a*Tan[e + f*x])/(a + b*Tan[e + f*x]), x], x]
/; FreeQ[{a, b, c, d, e, f}, x] && NeQ[b*c - a*d, 0] && NeQ[a^2 + b^2, 0] && NeQ[a*c + b*d, 0]

Rubi steps

\begin {align*} \int \frac {1}{(a+b \tanh (c+d x))^3} \, dx &=\frac {b}{2 \left (a^2-b^2\right ) d (a+b \tanh (c+d x))^2}+\frac {\int \frac {a-b \tanh (c+d x)}{(a+b \tanh (c+d x))^2} \, dx}{a^2-b^2}\\ &=\frac {b}{2 \left (a^2-b^2\right ) d (a+b \tanh (c+d x))^2}+\frac {2 a b}{\left (a^2-b^2\right )^2 d (a+b \tanh (c+d x))}+\frac {\int \frac {a^2+b^2-2 a b \tanh (c+d x)}{a+b \tanh (c+d x)} \, dx}{\left (a^2-b^2\right )^2}\\ &=\frac {a \left (a^2+3 b^2\right ) x}{\left (a^2-b^2\right )^3}+\frac {b}{2 \left (a^2-b^2\right ) d (a+b \tanh (c+d x))^2}+\frac {2 a b}{\left (a^2-b^2\right )^2 d (a+b \tanh (c+d x))}-\frac {\left (i b \left (3 a^2+b^2\right )\right ) \int \frac {-i b-i a \tanh (c+d x)}{a+b \tanh (c+d x)} \, dx}{\left (a^2-b^2\right )^3}\\ &=\frac {a \left (a^2+3 b^2\right ) x}{\left (a^2-b^2\right )^3}-\frac {b \left (3 a^2+b^2\right ) \log (a \cosh (c+d x)+b \sinh (c+d x))}{\left (a^2-b^2\right )^3 d}+\frac {b}{2 \left (a^2-b^2\right ) d (a+b \tanh (c+d x))^2}+\frac {2 a b}{\left (a^2-b^2\right )^2 d (a+b \tanh (c+d x))}\\ \end {align*}

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Mathematica [A]
time = 1.69, size = 122, normalized size = 0.95 \begin {gather*} \frac {-\frac {\log (1-\tanh (c+d x))}{(a+b)^3}+\frac {\log (1+\tanh (c+d x))}{(a-b)^3}+\frac {b \left (-2 \left (3 a^2+b^2\right ) \log (a+b \tanh (c+d x))+\frac {\left (a^2-b^2\right ) \left (5 a^2-b^2+4 a b \tanh (c+d x)\right )}{(a+b \tanh (c+d x))^2}\right )}{\left (a^2-b^2\right )^3}}{2 d} \end {gather*}

Antiderivative was successfully verified.

[In]

Integrate[(a + b*Tanh[c + d*x])^(-3),x]

[Out]

(-(Log[1 - Tanh[c + d*x]]/(a + b)^3) + Log[1 + Tanh[c + d*x]]/(a - b)^3 + (b*(-2*(3*a^2 + b^2)*Log[a + b*Tanh[
c + d*x]] + ((a^2 - b^2)*(5*a^2 - b^2 + 4*a*b*Tanh[c + d*x]))/(a + b*Tanh[c + d*x])^2))/(a^2 - b^2)^3)/(2*d)

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Maple [A]
time = 0.64, size = 130, normalized size = 1.01

method	result	size
derivativedivides	\(\frac {\frac {\ln \left (\tanh \left (d x +c \right )+1\right )}{2 \left (a -b \right )^{3}}+\frac {b}{2 \left (a -b \right ) \left (a +b \right ) \left (a +b \tanh \left (d x +c \right )\right )^{2}}+\frac {2 a b}{\left (a +b \right )^{2} \left (a -b \right )^{2} \left (a +b \tanh \left (d x +c \right )\right )}-\frac {b \left (3 a^{2}+b^{2}\right ) \ln \left (a +b \tanh \left (d x +c \right )\right )}{\left (a +b \right )^{3} \left (a -b \right )^{3}}-\frac {\ln \left (\tanh \left (d x +c \right )-1\right )}{2 \left (a +b \right )^{3}}}{d}\)	\(130\)
default	\(\frac {\frac {\ln \left (\tanh \left (d x +c \right )+1\right )}{2 \left (a -b \right )^{3}}+\frac {b}{2 \left (a -b \right ) \left (a +b \right ) \left (a +b \tanh \left (d x +c \right )\right )^{2}}+\frac {2 a b}{\left (a +b \right )^{2} \left (a -b \right )^{2} \left (a +b \tanh \left (d x +c \right )\right )}-\frac {b \left (3 a^{2}+b^{2}\right ) \ln \left (a +b \tanh \left (d x +c \right )\right )}{\left (a +b \right )^{3} \left (a -b \right )^{3}}-\frac {\ln \left (\tanh \left (d x +c \right )-1\right )}{2 \left (a +b \right )^{3}}}{d}\)	\(130\)
risch	\(\frac {x}{a^{3}+3 a^{2} b +3 a \,b^{2}+b^{3}}+\frac {6 b \,a^{2} x}{a^{6}-3 a^{4} b^{2}+3 a^{2} b^{4}-b^{6}}+\frac {2 b^{3} x}{a^{6}-3 a^{4} b^{2}+3 a^{2} b^{4}-b^{6}}+\frac {6 b \,a^{2} c}{d \left (a^{6}-3 a^{4} b^{2}+3 a^{2} b^{4}-b^{6}\right )}+\frac {2 b^{3} c}{d \left (a^{6}-3 a^{4} b^{2}+3 a^{2} b^{4}-b^{6}\right )}+\frac {2 b^{2} \left (3 a^{2} {\mathrm e}^{2 d x +2 c}+2 a b \,{\mathrm e}^{2 d x +2 c}-b^{2} {\mathrm e}^{2 d x +2 c}+3 a^{2}-3 a b \right )}{\left (a -b \right )^{2} d \left (a^{3}+3 a^{2} b +3 a \,b^{2}+b^{3}\right ) \left (a \,{\mathrm e}^{2 d x +2 c}+b \,{\mathrm e}^{2 d x +2 c}+a -b \right )^{2}}-\frac {3 b \ln \left ({\mathrm e}^{2 d x +2 c}+\frac {a -b}{a +b}\right ) a^{2}}{d \left (a^{6}-3 a^{4} b^{2}+3 a^{2} b^{4}-b^{6}\right )}-\frac {b^{3} \ln \left ({\mathrm e}^{2 d x +2 c}+\frac {a -b}{a +b}\right )}{d \left (a^{6}-3 a^{4} b^{2}+3 a^{2} b^{4}-b^{6}\right )}\)	\(396\)

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(a+b*tanh(d*x+c))^3,x,method=_RETURNVERBOSE)

[Out]

1/d*(1/2/(a-b)^3*ln(tanh(d*x+c)+1)+1/2*b/(a-b)/(a+b)/(a+b*tanh(d*x+c))^2+2*a*b/(a+b)^2/(a-b)^2/(a+b*tanh(d*x+c
))-b*(3*a^2+b^2)/(a+b)^3/(a-b)^3*ln(a+b*tanh(d*x+c))-1/2/(a+b)^3*ln(tanh(d*x+c)-1))

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Maxima [B] Leaf count of result is larger than twice the leaf count of optimal. 325 vs. \(2 (127) = 254\).
time = 0.30, size = 325, normalized size = 2.52 \begin {gather*} -\frac {{\left (3 \, a^{2} b + b^{3}\right )} \log \left (-{\left (a - b\right )} e^{\left (-2 \, d x - 2 \, c\right )} - a - b\right )}{{\left (a^{6} - 3 \, a^{4} b^{2} + 3 \, a^{2} b^{4} - b^{6}\right )} d} - \frac {2 \, {\left (3 \, a^{2} b^{2} + 3 \, a b^{3} + {\left (3 \, a^{2} b^{2} - 2 \, a b^{3} - b^{4}\right )} e^{\left (-2 \, d x - 2 \, c\right )}\right )}}{{\left (a^{7} + a^{6} b - 3 \, a^{5} b^{2} - 3 \, a^{4} b^{3} + 3 \, a^{3} b^{4} + 3 \, a^{2} b^{5} - a b^{6} - b^{7} + 2 \, {\left (a^{7} - a^{6} b - 3 \, a^{5} b^{2} + 3 \, a^{4} b^{3} + 3 \, a^{3} b^{4} - 3 \, a^{2} b^{5} - a b^{6} + b^{7}\right )} e^{\left (-2 \, d x - 2 \, c\right )} + {\left (a^{7} - 3 \, a^{6} b + a^{5} b^{2} + 5 \, a^{4} b^{3} - 5 \, a^{3} b^{4} - a^{2} b^{5} + 3 \, a b^{6} - b^{7}\right )} e^{\left (-4 \, d x - 4 \, c\right )}\right )} d} + \frac {d x + c}{{\left (a^{3} + 3 \, a^{2} b + 3 \, a b^{2} + b^{3}\right )} d} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a+b*tanh(d*x+c))^3,x, algorithm="maxima")

[Out]

-(3*a^2*b + b^3)*log(-(a - b)*e^(-2*d*x - 2*c) - a - b)/((a^6 - 3*a^4*b^2 + 3*a^2*b^4 - b^6)*d) - 2*(3*a^2*b^2
+ 3*a*b^3 + (3*a^2*b^2 - 2*a*b^3 - b^4)*e^(-2*d*x - 2*c))/((a^7 + a^6*b - 3*a^5*b^2 - 3*a^4*b^3 + 3*a^3*b^4 +
3*a^2*b^5 - a*b^6 - b^7 + 2*(a^7 - a^6*b - 3*a^5*b^2 + 3*a^4*b^3 + 3*a^3*b^4 - 3*a^2*b^5 - a*b^6 + b^7)*e^(-2
*d*x - 2*c) + (a^7 - 3*a^6*b + a^5*b^2 + 5*a^4*b^3 - 5*a^3*b^4 - a^2*b^5 + 3*a*b^6 - b^7)*e^(-4*d*x - 4*c))*d)
+ (d*x + c)/((a^3 + 3*a^2*b + 3*a*b^2 + b^3)*d)

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Fricas [B] Leaf count of result is larger than twice the leaf count of optimal. 1427 vs. \(2 (127) = 254\).
time = 0.39, size = 1427, normalized size = 11.06 \begin {gather*} \frac {{\left (a^{5} + 5 \, a^{4} b + 10 \, a^{3} b^{2} + 10 \, a^{2} b^{3} + 5 \, a b^{4} + b^{5}\right )} d x \cosh \left (d x + c\right )^{4} + 4 \, {\left (a^{5} + 5 \, a^{4} b + 10 \, a^{3} b^{2} + 10 \, a^{2} b^{3} + 5 \, a b^{4} + b^{5}\right )} d x \cosh \left (d x + c\right ) \sinh \left (d x + c\right )^{3} + {\left (a^{5} + 5 \, a^{4} b + 10 \, a^{3} b^{2} + 10 \, a^{2} b^{3} + 5 \, a b^{4} + b^{5}\right )} d x \sinh \left (d x + c\right )^{4} + 6 \, a^{3} b^{2} - 12 \, a^{2} b^{3} + 6 \, a b^{4} + {\left (a^{5} + a^{4} b - 2 \, a^{3} b^{2} - 2 \, a^{2} b^{3} + a b^{4} + b^{5}\right )} d x + 2 \, {\left (3 \, a^{3} b^{2} - a^{2} b^{3} - 3 \, a b^{4} + b^{5} + {\left (a^{5} + 3 \, a^{4} b + 2 \, a^{3} b^{2} - 2 \, a^{2} b^{3} - 3 \, a b^{4} - b^{5}\right )} d x\right )} \cosh \left (d x + c\right )^{2} + 2 \, {\left (3 \, a^{3} b^{2} - a^{2} b^{3} - 3 \, a b^{4} + b^{5} + 3 \, {\left (a^{5} + 5 \, a^{4} b + 10 \, a^{3} b^{2} + 10 \, a^{2} b^{3} + 5 \, a b^{4} + b^{5}\right )} d x \cosh \left (d x + c\right )^{2} + {\left (a^{5} + 3 \, a^{4} b + 2 \, a^{3} b^{2} - 2 \, a^{2} b^{3} - 3 \, a b^{4} - b^{5}\right )} d x\right )} \sinh \left (d x + c\right )^{2} - {\left (3 \, a^{4} b - 6 \, a^{3} b^{2} + 4 \, a^{2} b^{3} - 2 \, a b^{4} + b^{5} + {\left (3 \, a^{4} b + 6 \, a^{3} b^{2} + 4 \, a^{2} b^{3} + 2 \, a b^{4} + b^{5}\right )} \cosh \left (d x + c\right )^{4} + 4 \, {\left (3 \, a^{4} b + 6 \, a^{3} b^{2} + 4 \, a^{2} b^{3} + 2 \, a b^{4} + b^{5}\right )} \cosh \left (d x + c\right ) \sinh \left (d x + c\right )^{3} + {\left (3 \, a^{4} b + 6 \, a^{3} b^{2} + 4 \, a^{2} b^{3} + 2 \, a b^{4} + b^{5}\right )} \sinh \left (d x + c\right )^{4} + 2 \, {\left (3 \, a^{4} b - 2 \, a^{2} b^{3} - b^{5}\right )} \cosh \left (d x + c\right )^{2} + 2 \, {\left (3 \, a^{4} b - 2 \, a^{2} b^{3} - b^{5} + 3 \, {\left (3 \, a^{4} b + 6 \, a^{3} b^{2} + 4 \, a^{2} b^{3} + 2 \, a b^{4} + b^{5}\right )} \cosh \left (d x + c\right )^{2}\right )} \sinh \left (d x + c\right )^{2} + 4 \, {\left ({\left (3 \, a^{4} b + 6 \, a^{3} b^{2} + 4 \, a^{2} b^{3} + 2 \, a b^{4} + b^{5}\right )} \cosh \left (d x + c\right )^{3} + {\left (3 \, a^{4} b - 2 \, a^{2} b^{3} - b^{5}\right )} \cosh \left (d x + c\right )\right )} \sinh \left (d x + c\right )\right )} \log \left (\frac {2 \, {\left (a \cosh \left (d x + c\right ) + b \sinh \left (d x + c\right )\right )}}{\cosh \left (d x + c\right ) - \sinh \left (d x + c\right )}\right ) + 4 \, {\left ({\left (a^{5} + 5 \, a^{4} b + 10 \, a^{3} b^{2} + 10 \, a^{2} b^{3} + 5 \, a b^{4} + b^{5}\right )} d x \cosh \left (d x + c\right )^{3} + {\left (3 \, a^{3} b^{2} - a^{2} b^{3} - 3 \, a b^{4} + b^{5} + {\left (a^{5} + 3 \, a^{4} b + 2 \, a^{3} b^{2} - 2 \, a^{2} b^{3} - 3 \, a b^{4} - b^{5}\right )} d x\right )} \cosh \left (d x + c\right )\right )} \sinh \left (d x + c\right )}{{\left (a^{8} + 2 \, a^{7} b - 2 \, a^{6} b^{2} - 6 \, a^{5} b^{3} + 6 \, a^{3} b^{5} + 2 \, a^{2} b^{6} - 2 \, a b^{7} - b^{8}\right )} d \cosh \left (d x + c\right )^{4} + 4 \, {\left (a^{8} + 2 \, a^{7} b - 2 \, a^{6} b^{2} - 6 \, a^{5} b^{3} + 6 \, a^{3} b^{5} + 2 \, a^{2} b^{6} - 2 \, a b^{7} - b^{8}\right )} d \cosh \left (d x + c\right ) \sinh \left (d x + c\right )^{3} + {\left (a^{8} + 2 \, a^{7} b - 2 \, a^{6} b^{2} - 6 \, a^{5} b^{3} + 6 \, a^{3} b^{5} + 2 \, a^{2} b^{6} - 2 \, a b^{7} - b^{8}\right )} d \sinh \left (d x + c\right )^{4} + 2 \, {\left (a^{8} - 4 \, a^{6} b^{2} + 6 \, a^{4} b^{4} - 4 \, a^{2} b^{6} + b^{8}\right )} d \cosh \left (d x + c\right )^{2} + 2 \, {\left (3 \, {\left (a^{8} + 2 \, a^{7} b - 2 \, a^{6} b^{2} - 6 \, a^{5} b^{3} + 6 \, a^{3} b^{5} + 2 \, a^{2} b^{6} - 2 \, a b^{7} - b^{8}\right )} d \cosh \left (d x + c\right )^{2} + {\left (a^{8} - 4 \, a^{6} b^{2} + 6 \, a^{4} b^{4} - 4 \, a^{2} b^{6} + b^{8}\right )} d\right )} \sinh \left (d x + c\right )^{2} + {\left (a^{8} - 2 \, a^{7} b - 2 \, a^{6} b^{2} + 6 \, a^{5} b^{3} - 6 \, a^{3} b^{5} + 2 \, a^{2} b^{6} + 2 \, a b^{7} - b^{8}\right )} d + 4 \, {\left ({\left (a^{8} + 2 \, a^{7} b - 2 \, a^{6} b^{2} - 6 \, a^{5} b^{3} + 6 \, a^{3} b^{5} + 2 \, a^{2} b^{6} - 2 \, a b^{7} - b^{8}\right )} d \cosh \left (d x + c\right )^{3} + {\left (a^{8} - 4 \, a^{6} b^{2} + 6 \, a^{4} b^{4} - 4 \, a^{2} b^{6} + b^{8}\right )} d \cosh \left (d x + c\right )\right )} \sinh \left (d x + c\right )} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a+b*tanh(d*x+c))^3,x, algorithm="fricas")

[Out]

((a^5 + 5*a^4*b + 10*a^3*b^2 + 10*a^2*b^3 + 5*a*b^4 + b^5)*d*x*cosh(d*x + c)^4 + 4*(a^5 + 5*a^4*b + 10*a^3*b^2
+ 10*a^2*b^3 + 5*a*b^4 + b^5)*d*x*cosh(d*x + c)*sinh(d*x + c)^3 + (a^5 + 5*a^4*b + 10*a^3*b^2 + 10*a^2*b^3 +
5*a*b^4 + b^5)*d*x*sinh(d*x + c)^4 + 6*a^3*b^2 - 12*a^2*b^3 + 6*a*b^4 + (a^5 + a^4*b - 2*a^3*b^2 - 2*a^2*b^3 +
a*b^4 + b^5)*d*x + 2*(3*a^3*b^2 - a^2*b^3 - 3*a*b^4 + b^5 + (a^5 + 3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a*b^4
- b^5)*d*x)*cosh(d*x + c)^2 + 2*(3*a^3*b^2 - a^2*b^3 - 3*a*b^4 + b^5 + 3*(a^5 + 5*a^4*b + 10*a^3*b^2 + 10*a^2*
b^3 + 5*a*b^4 + b^5)*d*x*cosh(d*x + c)^2 + (a^5 + 3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a*b^4 - b^5)*d*x)*sinh(d
*x + c)^2 - (3*a^4*b - 6*a^3*b^2 + 4*a^2*b^3 - 2*a*b^4 + b^5 + (3*a^4*b + 6*a^3*b^2 + 4*a^2*b^3 + 2*a*b^4 + b^
5)*cosh(d*x + c)^4 + 4*(3*a^4*b + 6*a^3*b^2 + 4*a^2*b^3 + 2*a*b^4 + b^5)*cosh(d*x + c)*sinh(d*x + c)^3 + (3*a^
4*b + 6*a^3*b^2 + 4*a^2*b^3 + 2*a*b^4 + b^5)*sinh(d*x + c)^4 + 2*(3*a^4*b - 2*a^2*b^3 - b^5)*cosh(d*x + c)^2 +
2*(3*a^4*b - 2*a^2*b^3 - b^5 + 3*(3*a^4*b + 6*a^3*b^2 + 4*a^2*b^3 + 2*a*b^4 + b^5)*cosh(d*x + c)^2)*sinh(d*x
+ c)^2 + 4*((3*a^4*b + 6*a^3*b^2 + 4*a^2*b^3 + 2*a*b^4 + b^5)*cosh(d*x + c)^3 + (3*a^4*b - 2*a^2*b^3 - b^5)*co
sh(d*x + c))*sinh(d*x + c))*log(2*(a*cosh(d*x + c) + b*sinh(d*x + c))/(cosh(d*x + c) - sinh(d*x + c))) + 4*((a
^5 + 5*a^4*b + 10*a^3*b^2 + 10*a^2*b^3 + 5*a*b^4 + b^5)*d*x*cosh(d*x + c)^3 + (3*a^3*b^2 - a^2*b^3 - 3*a*b^4 +
b^5 + (a^5 + 3*a^4*b + 2*a^3*b^2 - 2*a^2*b^3 - 3*a*b^4 - b^5)*d*x)*cosh(d*x + c))*sinh(d*x + c))/((a^8 + 2*a^
7*b - 2*a^6*b^2 - 6*a^5*b^3 + 6*a^3*b^5 + 2*a^2*b^6 - 2*a*b^7 - b^8)*d*cosh(d*x + c)^4 + 4*(a^8 + 2*a^7*b - 2*
a^6*b^2 - 6*a^5*b^3 + 6*a^3*b^5 + 2*a^2*b^6 - 2*a*b^7 - b^8)*d*cosh(d*x + c)*sinh(d*x + c)^3 + (a^8 + 2*a^7*b
- 2*a^6*b^2 - 6*a^5*b^3 + 6*a^3*b^5 + 2*a^2*b^6 - 2*a*b^7 - b^8)*d*sinh(d*x + c)^4 + 2*(a^8 - 4*a^6*b^2 + 6*a^
4*b^4 - 4*a^2*b^6 + b^8)*d*cosh(d*x + c)^2 + 2*(3*(a^8 + 2*a^7*b - 2*a^6*b^2 - 6*a^5*b^3 + 6*a^3*b^5 + 2*a^2*b
^6 - 2*a*b^7 - b^8)*d*cosh(d*x + c)^2 + (a^8 - 4*a^6*b^2 + 6*a^4*b^4 - 4*a^2*b^6 + b^8)*d)*sinh(d*x + c)^2 + (
a^8 - 2*a^7*b - 2*a^6*b^2 + 6*a^5*b^3 - 6*a^3*b^5 + 2*a^2*b^6 + 2*a*b^7 - b^8)*d + 4*((a^8 + 2*a^7*b - 2*a^6*b
^2 - 6*a^5*b^3 + 6*a^3*b^5 + 2*a^2*b^6 - 2*a*b^7 - b^8)*d*cosh(d*x + c)^3 + (a^8 - 4*a^6*b^2 + 6*a^4*b^4 - 4*a
^2*b^6 + b^8)*d*cosh(d*x + c))*sinh(d*x + c))

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Sympy [B] Leaf count of result is larger than twice the leaf count of optimal. 16657 vs. \(2 (107) = 214\).
time = 82.40, size = 16657, normalized size = 129.12 \begin {gather*} \text {Too large to display} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a+b*tanh(d*x+c))**3,x)

[Out]

Piecewise((zoo*x/tanh(c)**3, Eq(a, 0) & Eq(b, 0) & Eq(d, 0)), (x/a**3, Eq(b, 0)), (-3*d*x*tanh(c + d*x)**3/(24
*b**3*d*tanh(c + d*x)**3 - 72*b**3*d*tanh(c + d*x)**2 + 72*b**3*d*tanh(c + d*x) - 24*b**3*d) + 9*d*x*tanh(c +
d*x)**2/(24*b**3*d*tanh(c + d*x)**3 - 72*b**3*d*tanh(c + d*x)**2 + 72*b**3*d*tanh(c + d*x) - 24*b**3*d) - 9*d*
x*tanh(c + d*x)/(24*b**3*d*tanh(c + d*x)**3 - 72*b**3*d*tanh(c + d*x)**2 + 72*b**3*d*tanh(c + d*x) - 24*b**3*d
) + 3*d*x/(24*b**3*d*tanh(c + d*x)**3 - 72*b**3*d*tanh(c + d*x)**2 + 72*b**3*d*tanh(c + d*x) - 24*b**3*d) + 3*
tanh(c + d*x)**2/(24*b**3*d*tanh(c + d*x)**3 - 72*b**3*d*tanh(c + d*x)**2 + 72*b**3*d*tanh(c + d*x) - 24*b**3*
d) - 9*tanh(c + d*x)/(24*b**3*d*tanh(c + d*x)**3 - 72*b**3*d*tanh(c + d*x)**2 + 72*b**3*d*tanh(c + d*x) - 24*b
**3*d) + 10/(24*b**3*d*tanh(c + d*x)**3 - 72*b**3*d*tanh(c + d*x)**2 + 72*b**3*d*tanh(c + d*x) - 24*b**3*d), E
q(a, -b)), (3*d*x*tanh(c + d*x)**3/(24*b**3*d*tanh(c + d*x)**3 + 72*b**3*d*tanh(c + d*x)**2 + 72*b**3*d*tanh(c
+ d*x) + 24*b**3*d) + 9*d*x*tanh(c + d*x)**2/(24*b**3*d*tanh(c + d*x)**3 + 72*b**3*d*tanh(c + d*x)**2 + 72*b*
*3*d*tanh(c + d*x) + 24*b**3*d) + 9*d*x*tanh(c + d*x)/(24*b**3*d*tanh(c + d*x)**3 + 72*b**3*d*tanh(c + d*x)**2
+ 72*b**3*d*tanh(c + d*x) + 24*b**3*d) + 3*d*x/(24*b**3*d*tanh(c + d*x)**3 + 72*b**3*d*tanh(c + d*x)**2 + 72*
b**3*d*tanh(c + d*x) + 24*b**3*d) - 3*tanh(c + d*x)**2/(24*b**3*d*tanh(c + d*x)**3 + 72*b**3*d*tanh(c + d*x)**
2 + 72*b**3*d*tanh(c + d*x) + 24*b**3*d) - 9*tanh(c + d*x)/(24*b**3*d*tanh(c + d*x)**3 + 72*b**3*d*tanh(c + d*
x)**2 + 72*b**3*d*tanh(c + d*x) + 24*b**3*d) - 10/(24*b**3*d*tanh(c + d*x)**3 + 72*b**3*d*tanh(c + d*x)**2 + 7
2*b**3*d*tanh(c + d*x) + 24*b**3*d), Eq(a, b)), (-3*d*x*exp(6*c)*exp(6*d*x)*tanh(c + d*x)**3/(24*b**3*d*exp(6*
c)*exp(6*d*x)*tanh(c + d*x)**3 - 72*b**3*d*exp(6*c)*exp(6*d*x)*tanh(c + d*x)**2 + 72*b**3*d*exp(6*c)*exp(6*d*x
)*tanh(c + d*x) - 24*b**3*d*exp(6*c)*exp(6*d*x) + 72*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x)**3 - 72*b**3*d*e
xp(4*c)*exp(4*d*x)*tanh(c + d*x)**2 - 72*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x) + 72*b**3*d*exp(4*c)*exp(4*d
*x) + 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x)**3 + 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x)**2 - 72*b**
3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x) - 72*b**3*d*exp(2*c)*exp(2*d*x) + 24*b**3*d*tanh(c + d*x)**3 + 72*b**3*d
*tanh(c + d*x)**2 + 72*b**3*d*tanh(c + d*x) + 24*b**3*d) + 9*d*x*exp(6*c)*exp(6*d*x)*tanh(c + d*x)**2/(24*b**3
*d*exp(6*c)*exp(6*d*x)*tanh(c + d*x)**3 - 72*b**3*d*exp(6*c)*exp(6*d*x)*tanh(c + d*x)**2 + 72*b**3*d*exp(6*c)*
exp(6*d*x)*tanh(c + d*x) - 24*b**3*d*exp(6*c)*exp(6*d*x) + 72*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x)**3 - 72
*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x)**2 - 72*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x) + 72*b**3*d*exp(4*c
)*exp(4*d*x) + 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x)**3 + 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x)**2
- 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x) - 72*b**3*d*exp(2*c)*exp(2*d*x) + 24*b**3*d*tanh(c + d*x)**3 +
72*b**3*d*tanh(c + d*x)**2 + 72*b**3*d*tanh(c + d*x) + 24*b**3*d) - 9*d*x*exp(6*c)*exp(6*d*x)*tanh(c + d*x)/(2
4*b**3*d*exp(6*c)*exp(6*d*x)*tanh(c + d*x)**3 - 72*b**3*d*exp(6*c)*exp(6*d*x)*tanh(c + d*x)**2 + 72*b**3*d*exp
(6*c)*exp(6*d*x)*tanh(c + d*x) - 24*b**3*d*exp(6*c)*exp(6*d*x) + 72*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x)**
3 - 72*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x)**2 - 72*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x) + 72*b**3*d*e
xp(4*c)*exp(4*d*x) + 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x)**3 + 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d
*x)**2 - 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x) - 72*b**3*d*exp(2*c)*exp(2*d*x) + 24*b**3*d*tanh(c + d*x)
**3 + 72*b**3*d*tanh(c + d*x)**2 + 72*b**3*d*tanh(c + d*x) + 24*b**3*d) + 3*d*x*exp(6*c)*exp(6*d*x)/(24*b**3*d
*exp(6*c)*exp(6*d*x)*tanh(c + d*x)**3 - 72*b**3*d*exp(6*c)*exp(6*d*x)*tanh(c + d*x)**2 + 72*b**3*d*exp(6*c)*ex
p(6*d*x)*tanh(c + d*x) - 24*b**3*d*exp(6*c)*exp(6*d*x) + 72*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x)**3 - 72*b
**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x)**2 - 72*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x) + 72*b**3*d*exp(4*c)*
exp(4*d*x) + 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x)**3 + 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x)**2 -
72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x) - 72*b**3*d*exp(2*c)*exp(2*d*x) + 24*b**3*d*tanh(c + d*x)**3 + 72
*b**3*d*tanh(c + d*x)**2 + 72*b**3*d*tanh(c + d*x) + 24*b**3*d) + 27*d*x*exp(4*c)*exp(4*d*x)*tanh(c + d*x)**3/
(24*b**3*d*exp(6*c)*exp(6*d*x)*tanh(c + d*x)**3 - 72*b**3*d*exp(6*c)*exp(6*d*x)*tanh(c + d*x)**2 + 72*b**3*d*e
xp(6*c)*exp(6*d*x)*tanh(c + d*x) - 24*b**3*d*exp(6*c)*exp(6*d*x) + 72*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x)
**3 - 72*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x)**2 - 72*b**3*d*exp(4*c)*exp(4*d*x)*tanh(c + d*x) + 72*b**3*d
*exp(4*c)*exp(4*d*x) + 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x)**3 + 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c +
d*x)**2 - 72*b**3*d*exp(2*c)*exp(2*d*x)*tanh(c + d*x) - 72*b**3*d*exp(2*c)*exp(2*d*x) + 24*b**3*d*tanh(c + d*
x)**3 + 72*b**3*d*tanh(c + d*x)**2 + 72*b**3*d*...

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Giac [A]
time = 0.42, size = 205, normalized size = 1.59 \begin {gather*} -\frac {\frac {{\left (3 \, a^{2} b + b^{3}\right )} \log \left ({\left | -a e^{\left (2 \, d x + 2 \, c\right )} - b e^{\left (2 \, d x + 2 \, c\right )} - a + b \right |}\right )}{a^{6} - 3 \, a^{4} b^{2} + 3 \, a^{2} b^{4} - b^{6}} - \frac {d x + c}{a^{3} - 3 \, a^{2} b + 3 \, a b^{2} - b^{3}} - \frac {2 \, {\left ({\left (3 \, a^{2} b^{2} - 4 \, a b^{3} + b^{4}\right )} e^{\left (2 \, d x + 2 \, c\right )} + \frac {3 \, {\left (a^{3} b^{2} - 2 \, a^{2} b^{3} + a b^{4}\right )}}{a + b}\right )}}{{\left (a e^{\left (2 \, d x + 2 \, c\right )} + b e^{\left (2 \, d x + 2 \, c\right )} + a - b\right )}^{2} {\left (a + b\right )}^{2} {\left (a - b\right )}^{3}}}{d} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

integrate(1/(a+b*tanh(d*x+c))^3,x, algorithm="giac")

[Out]

-((3*a^2*b + b^3)*log(abs(-a*e^(2*d*x + 2*c) - b*e^(2*d*x + 2*c) - a + b))/(a^6 - 3*a^4*b^2 + 3*a^2*b^4 - b^6)
- (d*x + c)/(a^3 - 3*a^2*b + 3*a*b^2 - b^3) - 2*((3*a^2*b^2 - 4*a*b^3 + b^4)*e^(2*d*x + 2*c) + 3*(a^3*b^2 - 2
*a^2*b^3 + a*b^4)/(a + b))/((a*e^(2*d*x + 2*c) + b*e^(2*d*x + 2*c) + a - b)^2*(a + b)^2*(a - b)^3))/d

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Mupad [B]
time = 2.11, size = 304, normalized size = 2.36 \begin {gather*} \frac {\mathrm {tanh}\left (c+d\,x\right )\,\left (\frac {1}{a\,d}-\frac {a^4+a^2\,b^2}{a\,d\,\left (a^4-2\,a^2\,b^2+b^4\right )}\right )+\frac {a^2\,x}{\left (a+b\right )\,\left (a^2+2\,a\,b+b^2\right )}+\frac {b^2\,x\,{\mathrm {tanh}\left (c+d\,x\right )}^2}{a^3+3\,a^2\,b+3\,a\,b^2+b^3}+\frac {{\mathrm {tanh}\left (c+d\,x\right )}^2\,\left (\frac {b^5}{2}-\frac {5\,a^2\,b^3}{2}\right )}{a^2\,d\,\left (a^4-2\,a^2\,b^2+b^4\right )}+\frac {2\,a\,b\,x\,\mathrm {tanh}\left (c+d\,x\right )}{a^3+3\,a^2\,b+3\,a\,b^2+b^3}}{a^2+2\,a\,b\,\mathrm {tanh}\left (c+d\,x\right )+b^2\,{\mathrm {tanh}\left (c+d\,x\right )}^2}-\frac {\ln \left (a+b\,\mathrm {tanh}\left (c+d\,x\right )\right )\,\left (3\,a^2\,b+b^3\right )}{d\,\left (a^6-3\,a^4\,b^2+3\,a^2\,b^4-b^6\right )}+\frac {\ln \left (\mathrm {tanh}\left (c+d\,x\right )+1\right )\,\left (3\,a^2\,b+b^3\right )}{d\,{\left (a^2-b^2\right )}^3} \end {gather*}

Verification of antiderivative is not currently implemented for this CAS.

[In]

int(1/(a + b*tanh(c + d*x))^3,x)

[Out]

(tanh(c + d*x)*(1/(a*d) - (a^4 + a^2*b^2)/(a*d*(a^4 + b^4 - 2*a^2*b^2))) + (a^2*x)/((a + b)*(2*a*b + a^2 + b^2
)) + (b^2*x*tanh(c + d*x)^2)/(3*a*b^2 + 3*a^2*b + a^3 + b^3) + (tanh(c + d*x)^2*(b^5/2 - (5*a^2*b^3)/2))/(a^2*
d*(a^4 + b^4 - 2*a^2*b^2)) + (2*a*b*x*tanh(c + d*x))/(3*a*b^2 + 3*a^2*b + a^3 + b^3))/(a^2 + b^2*tanh(c + d*x)
^2 + 2*a*b*tanh(c + d*x)) - (log(a + b*tanh(c + d*x))*(3*a^2*b + b^3))/(d*(a^6 - b^6 + 3*a^2*b^4 - 3*a^4*b^2))
+ (log(tanh(c + d*x) + 1)*(3*a^2*b + b^3))/(d*(a^2 - b^2)^3)

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